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H. HESCH. COMBINED UPEWRITING AND COMPUTING MAcmNE.

APP'LICATION FILED MAY 23. |919.

fammi Mar. 1, 192i 2 SHEETS-SHEET l- H. RESCH. CDMBINED TYPEWRITING AND COMPUTING'MACiuNE.

APPUCATION FILED MAY 23| |919.

Patented Mar. 1, 1921.

2 sains-SHEET 2- UNITED STATES PATENT OFFICE.

HENRY RESCH, 0F BAYONNE. NEW JERSEY. ASSIGNOR T0 UNDERWOOD COMPUTING MACHINE COMPANY. OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

COMBINED TYPEWRITINC AND COMPUTING MACHINE.

Application filed May 23, 1919.

To l'ichom it may cow-frmir Be it known that I. HENRY Rnscn. a citi- '/.en ot' the llnited States. residing in Bayonne. in the county of Hudson and State of New Jersey. have invented certain new and useful Improvements in Combined Typewriting andV Computing Machines. of which the following is a specification.

his invention relates to means for yieldingly retaining index pins in certain positions on pin bars or denominational members, and is illustrated as applied to a machine of the Underwood-Hauson type. such as that disclosed in the patent to Minton. No. 1.280.065. dated September 24. 1918.

In the combined typewriting and eomputing machines of the type referred to, operation of the numeral keys. during passage through a computing zone, will effect a setting of index pins in accordance with the digits printed. These index pins are carried b v denominational bars, one for each of the wheels. by which computation is effin-ted. and the bar on which a pin is set corresponding to any key depression is determined 'by the successive movement of said pin bars from their normal positions to positions to enable pins thereon to he set by pin-setting bars operated by the numeral keys. Upon completion of a pixrsetting or indexing. an operation of a general operator will effect. a movement of said bars in aeeordance with the pins indexed thereon, and a correspmuling movement of the computingr wheels operated by said bars. Such machines are also adapted for performing subtraction by the complementary method. and in setting a machine for an operation of this kind. the 9 pins are depressed. and the connections between the keys and the pin-setting bars are so changed that the pin set up as a result of depression of a numeral key will have the value obtained by sub` traeting the value of the numeral key from 9. Provision is also made whereby the 9 pin on any of said bars will be restored to normal position upon a setting in depressed position of any other pin on the bar. In such machines, provision is made of means to yieldingly retain the indexing pins in either normal or depressed position, or in both. 4

According to the present. invention, a re- '.silient member, preferably in the form ofa ["'elical spring, is supported in engagement Specification of Letters Patent.

Patented Mar. 1, 1921. Serial No. 299,166.

with the pins on each of said pin bars, and cof )crates with suitably formed portions of sait. pins to yieldingly maintain the same in positions to which they have been moved.

rovision may be made of a single member having a flange to engage with certain of said pins to limit their longitudinalmovements and also to prevent their rotation, and having teeth engaging the helical spring in spaces between the pins and maintaining said spring in effective position. Thiscon struction provides a simple and ellicient de vice. adapted ,for economical manufacture and for ready assemblage.

Other features and advantages will hereinafter appeal.

In the accompanyingr drawings,

Figure 1 is a diagrammatic side elevation. partly in section, of a machine of the Underwood-Hanson type. with my invention applied thereto.

Fig. 2 is a side view, with parts broken away. of a pin bar having my invention applied thereto.

Fig. 3 is a plan yiew in Fig. 2.

Fig. 4 is a sectional view of yshowing a pin in raised position.

Fig. is a view similar to Fig. 4. showing the pin partially depressed.

Fig. (5 is a fragmentary view of part of the pin bar.

ig. 7 is a sectional view of part of the piu bar. showing 'the helical spring in connection with the index pins.

Fig. 8 is a perspective view the pin rage.

U pon depression of an alphabet key 1, or a numeral key 2. motion will be transmitted by means of a key-lever 3 and bell-crank 4, to swing a typer'har 5 upwardly and rear wardly about a pivot rod 6` to bring a type 7 into engagement with a platen 8 rotatably mounted on a carriage 9. Said carriage 9 is carried by front and rear rails l() and 11, respectively. and is urged to the left by means of the usual strap 12 and springdrum 13.

To control the movement of the carriage under the urging of spring-drum 13, provision is made of a rack 14 secured to said carriage and engaging a pinion 15 having the usual one-way connection with an escapement wheel 16, which, in turn, is controlled for a step-bystcp movement by the usual a pin bar,

of a part of fifi tast and loose dogs li' and 1S, respectively. Actiiation of said fast and loose dogs is eft'ectcd hy means of a universal frame 19. which is struc-lt by a heel 2() on any ot' said type-hars at the end of the printing;r stroke.

At the rear of thc machine a har 21, carry- `in; r a. tappct 22. is mounted for swinging and j iding movement on a rod 23, supported on mirriage il, '.ind is normally held against movement along rod 23 by means of a tooth 2l, on said hai' 2l, engaging in notches in a hail 24. As the'curringe enters a computiupr zone. lia r 21 will be raised into effective position h v means of a roll Q5 thereon engaging a zoiicazontrolling roller 26 carried h y arms 27. When har 2l is in such raised position, tappet 2Q will come, into engagement siicciissivclj.' with jacks 9.8 and rock the `saine ahout their pivots` on tliemachinc frame to depress links 29, and thereinv rock leversv :lo hai-iner engagement with transposition linkages 'il. The movement of said transposition linkages will he effective through heller-ranks 3:2 and pinsA 33, mounted on pin bars 34. to advance. said pin hars sulii-ieutli to liring pins 35 in position to be `set hy the iiuinci'allicyoicrateri indexingr mechanism. Upon completion of the indexing ol' :i number and actuation of the general operator` cross-har 36; forming,r part of the gene-rai operator.` will engage the depressed pins and advance pin hars 34. in accordance with the pins depressed. to nctuatc dial wheels 37.

ln order to index numbers on said pins 35, cach nunieral-key-levcr is provided with a pendant 39. and upon` depression of a niinieizil ke); the eorrespomlii'ig: pendant. will engage an arm 313 and rock a shaft 40. The rocking movement of shaft 40 will he transniitted h v ,means of an arm 4l to a linkage 4Q. and cause a bar, 43, forming: part of .said linkage, to depress the. proper pin on the Scleetod pin bnr.

li'hen it is desired to use the machine for subtraction, subtraction key 44 is depressed. and. h y nicaiis oi' link 45 and arm 46. shaft -lT is rocked to withdraw a hooked hitch 49 troni a notch 4S) ini a subtraction har 50. The subtraction hai' upon such release is drawn to the rear hy means of a spring 5l. and a pin 52 on said subtraction har swings an arm 53 and thereby rocks a shaft 54 from which motion is transmitted. liv means of :ii'ni 55, piu 51" and arm 57. to '.i har 58 pivotcd nt its: upper edge at 59 and engaging! in notcliest'itl in said rock shaft 4U. Theisuhtraction haiin its rearward movement will also effect. through mechanism not shown` depression of a har (il. and. incidental to the .snniltaneousl depression of the 9 pins` the rocking of levers' (i2 to elevate their rearivard ends'. rl`he forward movement oi' shaft`l 40. duev tocliangc in position of har 58, will cause the connections between said rock' shafts 40 and the linkages to hc changed, so that each shaft, instead of operating its usual linkage, will operate n linkage corresponding to a number obtained bygsi1btraeting the number of the `rock :haft from 9, and an arm (i3 on each of said shafts will he connected to a bar 64, so that ac tuetion of an of seid rock-shafts will canse depression o said har 64. The mechanism thus far described is in general the same as that disclosed in said patent to Minton,

and the subtraction mechanism is more fully disclosed in the patent to Thornton, No. 1,283,360, dated October 29,1918.

Each of the bars 34 is provided with a pin cage 65; preferably formed separate from bar 34 and connected thereto by anyV suitable means. The pins 35, which are Supliorted by said pin cage, are preferably cut away at their upper ends to provide flat surfaces .66 and opposed shoulders 67 at the ends lof said surfaces. Said pins are also provided with notches 6B to coperate with a retaining means to be described. Provision is made of a slot '69 in the pin cage, and a slot 70 in the pin bar registering with slot 69, in order that a resilient device 71, preferably a closely-coiled helical spring, may be brought into engagement with all of said pins 35. A eomb'72 is provided with a Range 73 which engages with surfaces (i6 on all of the pins except the 9 in, and said comb is provided with teeth g4 positioncdin the spaces between said pins and which may serve as the sole means to maintain spring -71 in effective position. lt shoiiid he understood that the pressure of the spring 71 against the pins to resist movement of the latter is due rather to resistance of the spring against lateral flexing than to tensioning of thc spring. The forward end oflever 62' projects between the opposed shoulders 67 on tht 9 pin, and serves to' limit the upward and downward movement of said pin. as well as to enable lifting` of said pin upon depression of har 64.

It will he seen that comb 72 by means of its flange 73 cooperates with`shoulders (i7 to limit thc reciprocatory movement of pins 35. with the exception of the 9 pin. and cooperates with surfaces G6 of these pins to prevent their rotation, and that by means of teeth T4 helical spring 71 is maintained in effective position to cooperate with notches 6F.

v'ariaticns .may be resorted to within the scope of tue invention, and portions of theimprovements may he used without others.

Having thus described my invention` I claim: i

l. ln :i computing machine,` the combina tion with a denominational member com prising a haar' with a pin coge thereon, of pins settable in said pin cage, said bar and pin cage hav. ng n longitudinal slot exposing said pins on one side, a helical spring 'lying along said slot in engagement with sai pins and held against longitudinal movement by engagement with the ends of said slot, said pins being. formed sous to cooperate with said spring to enable said pins to be maintained in certain positions, and a device to hold said spring in said slot and to limit the movement of said pins.

2. In a com uting machine, the combination with a enominational bar, of a pin cage secured to said bar, pins settable in said pin cage, means to hold said ins against rotation, a helical spring engaging said pins through a longitudinal slot in said bar and said pin cage, said pins being shaped to coperate with said spring for determining the position 0f said pins, and means engaging said spring infthe intervals between said pins to press said spring toward said ins.

p 3'. In a computing machine, the combination with a denominational bai, of a pin cage secured to Said bar, pins settable in said pin-cage, a helical spring engaging said pins through a longitudinal slot in said bar and said pin-cage, said pins bein shaped to coperute with said spring for etennining the position of said pins, and a device 'for engagingsaid spring at points between said pins to press the spring toward said pins and for preventing rotation of Said pins.

4. Ina computing machine, the combination with a pin bar, of a plurality of round ins settable on said bar, each of said pins zeing cut away near its upper end to form a flat surface with opposing shoulders at the ends of said flat surface, and being provided with two adjoining notches at an intermediate portion, a comb having a flange engaging said flat surfaces to prevent rotation of said pins, and to limit their longitudinal movements, ,and having teeth opposite the spaces between said pins, and u. coiled sprin interposed between said pins and said com to engage in said notches-to hold said pins in set or unset positions` 5. In a computing machine, the.eombina tion with a pin bar, of a plurality of settable pins supported by said pin bar, said pins having opposed shoulders near their upper ends and notcheil.foimations inter mediate their ends. a lever mounted on said pin bar' for limited movement with respect thereto, and having one of its ends interposed between the opposed shoulders of one nf said pins, a plate ou said bar to engage thil remaining pins between said opposed shoulders, and thereby limit the movement of said pins, a helical spring extending longitudinallylof said bar in position to co operate with said notched formations, and means to maintain said spring in position to coperatc with said pins, comprising members engaging said spring in s aces between said pins and on the sidelof't e spring opposite thereto.

6. In a computin machine adapted to efect addition orsu traction by the complementary method, lthe combination with a computation bar, of a plurality of settable pins having depressions intermediate their ends, a lever pivoted on said computation bar and having a limited movement about its pivot, one end of said lever being connected with one of said pins so as to move therewith, thereb enabling said. in to be restored to raisedY position by sai lever, a helical spring extending longitudinally of said bar 1n position to coperate with said pins, and means to maintain said spring in position to eoperate with said pins, comprising members engaging said spring between said pins and 'on the side of said spring opposite to said pins.

In a computing machine, the combination with a computation bar, comprising a pin cage, of pins settable in said pin cage, said bar and pm cage having a longitudinal slot exposing said pins .on one side, a re- 'silient memberlying along said slot in engagement with all of said members, said pins being formed so as to rcooperate with said resilient member to yieldingly maintain said pins in certain positions, and means engagmg said resilient member in spaces between said pins and on the side opposite said pins to maintain said resilient member in effective position.

8. In a computing machine, the combination with a computation bar, comprising a pin cage, of pins settable in said pin cage, said pms being provided with notches, a resilient member. in substantially cylindrical form in engagement with all of said pins, so as to coperate with said notches to yieldingly maintain said ypins in position, and means engaging said resilient member in the spaces between said pins and on the side opposite said pins to maintain said resilient member in effective position.

HENRY RESCH.

Witnesses:

JnNNm P. THonNE, Enrrn B. Llenar. 

